
    	
    	
    	
function aa(){
			var username=document.getElementById("username").value;
			var pwd=document.getElementById("password").value;
       		if(username==""){
       			document.getElementById('tip').style.display="block";
       			
            setTimeout("hide()",2000)
            return;
       		}
       		
       		if(pwd==""){
       			document.getElementById('tip2').style.display="block";
       			
            setTimeout("hide2()",2000)
            return;
       		}
       		else{
       			window.open("../../html/index.html");
       			return;
       		}
		}
		
			
function hide(){
			document.getElementById('tip').style.display='none';
			//这个是操作DIV消失的命令
			
}
function hide2(){
			document.getElementById('tip2').style.display='none';
			//这个是操作DIV消失的命令
			
}